Powered by Irony
20th May 2008Well, this whole comic series is bizarre. God is powered by irony.
Well, this whole comic series is bizarre. God is powered by irony.
If you’ve ever misheard a hymn lyric, then this is for you.
I’m still learning the power of gdb. It’s an immensely useful tool for debugging programs (funny, that…).
Today I wanted to find out the contents of a QString. “print s”, where “s” is a QString, doesn’t do much for you, though. The data is stored as an array of ushorts inside a shared data member. But all I want is to print out the string as it would appear if I did “qDebug() << s”, for example.
Solution: head over to the kdesdk module, and into the scripts directory, where mountains of useful bits reside. The script you want is kde-devel-gdb.
Now copy this to your home directory and put the line “source ~/kde-devel-gdb” into your ~/.gdbinit file. Or, if you’re building KDE in the manner prescribed on techbase, you can just put “source /home/kde-devel/src/KDE/kdesdk/scripts/kde-devel-gdb” into your ~/.gdbinit file.
To use, check out “help user-defined”. For example, to print a QString called s, type “printq4string s”. Ta-da!